Chef-designed and kitchen-proven with sustainability at the core, Thomas Keller's Insignia Commercial Clad Stainless Steel Cookware Collection raises the bar for professional culinary performance while remaining eco-friendly and this universal lid is no exception. Designed by Chef Keller himself, the universal stainless steel lid boasts durable construction with an innovative steam vent built into the Hestan logo to reduce pressure, prevent boil overs, and eliminate rattling during the cooking process. Packaged in recycled materials and designed to reduce manufacturing waste, this universal lid helps to maintain an eco-friendly lifestyle while also reducing clutter in the kitchen. Use this dishwasher safe and oven safe to 600°F stainless steel lid when cooking with frying pans or small saucepans to lock in heat for rich flavor.